Sheet-metal radiator



289 1929. A. FUCHS SHEET METAL RAD'ATOR A Filed Dec. 2, 19126 rarement May ze; 192e.

einen l@LOIS FUCHS, OF MR.OSTRAVA, CZECEOSLOVAKI.

snaar-METAL aannemen.

Application i'led :December 2, `1926, Serialll. 152,138, and in Czechoslovakia December 3, 1925.

flhe use of tin plates for radiators has not been possible until now, as the members ofthe radiators, when made of' tin, are not rigid enough at the places where they had to be connected. As all the motions, produced by transport or by heating, are transmitted to these places of connection, the sections of a radiator would move relative to each other and the effect would be that the places of connection would be loosened. j

The object of the invention is to obviate these drawbacks by making the members of each section of the radiator betweenthe con. y .necting means at each end of the section (openings of the radiator) of convolute form, so that deforming of a radiator is prevented, a distribution of the heating fluid takes place and the radiator is made resistant to'great pressures.

Another object of the invention is to provide an improved form of connecting means wherein the connecting tube and its ring member are held together and secured -to the section of a radiator by means of a pin.

In the drawing, tliesubject matter of the invention isv shown g in one constructional form, by way of example.

Fig. l is a fragmentary plan view of one ofthe members of a section of the radiator;

-Fig. 2 is a sectional view of one sect-ion of the radiator taken on the line a-b of Fig. l;

Fig. 3 is a similar View taken on'the line e-rZ offFig. l;

Fig. 4 is an enlarged longitudinal section .of one of the connecting means; and

Fig. 5 is a section taken at right angles to Fig. 4.

By forming the tin plate members of the section-of the radiator with convoluti'ons,

channels lof different lengths connected by strips 2 areeflected. When two of such .plates or members are placed together, as shown in Fig, 3, the channels 1 will form tubes, while the strips 2 are welded together by means of special machines. Y y

By means of these tubes, which are spaced equidistances apart, a register of tubes is formed and the heating fluid is divided while passing therethrough 1n such manner that a perfect distribution of the fluid is effected resulting in the utilization of its' full heating capacity, The channels l communicate with chambers in theupper and lower part of each section. vThesechambers are formed by'depressions 3 and permit of an upper and lower distribution of the fluid', the abutting depres' arranged on opposite sides and at the level of lopenings l3 4to which the connecting pipes (not shown) are joined for the purpose of circulating liquid through the radiator, and the channels terminate adjacent said openingsV and depressions with the ends of longer chan nels extending a slight distance bet-Ween the openings 3 and the depressions 3.

rl`he sections of the radiator can be connected by means affording reinforcement between sections and preventing any-relative movement between the same.

In openings 4 of the connection Vtube 7 and connecting ring 8 of' each connecting means, designed for the passage of thel heating fluid, there is mounted a pin 5. rthis pin 5 canr have a round or an angular form, according to the forms of the openings 4. This connection, provided with the pin 5, is put between the plates of theradiator section, before these latter are welded together, in such manner that the pinhead 6 engages the inside surfaces of the plates, preventing thus a distortionor a falling-out of the connecting means.

- As shown in Figs. 4 and 5, each connecting means consists of two parts, thel internally threaded connection tube 7 and the connecting ring `8. These two parts can beinade of dierent material, 'that of the connection tube 7 being made of a material of great ,strength to resist expansion and the connecting ring 8 being made of a material of great strength to resist pressure. The tube 7 and the ring 8 are connected by the pin 5, put into corresponding aligned openings 4. l

The tube 7 is surrounded by the ring 8 and at its ends by spacing sleeves 9, and can be therefore made of rolled tin plates without welding joint.

Radiatorsaccording to this invention, providedwith tubes formed by. means of convolutions in the members of the sections, can be made of tin plates of' the thickness dt 0.6-1 min. and .can resist the greatest pressure without being injured. 4 t I claim:

l. In a radiator, aipair of opposed sections,

openings aligned with those in said tube, and

15 3. A radiator 'of thin sheet metal including a pin engaging in two of said aligned openings and having a head engageable with ad- .jacent portions of said sections of the radiator.

2. In a radiator, a pairof opposed sections, a connecting means therefor including a connecting. tube havingopenings therein, a ring member encircling said tube and having openings aligned With those in said; tube, a a pin engaging in two of said aligned openings and having a head engageablewith adjacent portions of said sections of the radiator, and spacing sleeves encircling said tube on opposite sides of Said ring member.

' a sectional body having openings therein, the

at the ends of the radiator on opposite sides of 1 and adjacentsaid openings, and-the ends o said channels terminating adjacentsaid openings and depressions 'with the-ends of the lonoer channels extending a distance between -c b l c said openings and depresslons. l

In-testimony Whereofl 'affix my signature. I

A-Lois FUCHS. 

